X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=antikythera;a=blobdiff_plain;f=src%2Fgear.cc;h=e6a549115e838c56531972ad2e34fbd3aaf38310;hp=6ce9d8ac706151461e337f86d1c4fe7f1c9117a6;hb=1548fea8c64ebdfde728f33fd2d1537954ebf38b;hpb=84484521a697fe60f63bff077b9ba7475a45e54e

diff --git a/src/gear.cc b/src/gear.cc
index 6ce9d8a..e6a5491 100644
--- a/src/gear.cc
+++ b/src/gear.cc
@@ -1,3 +1,4 @@
+#include <stdlib.h>
 #include <GL/glew.h>
 #include "gear.h"
 #include "meshgen.h"
@@ -16,7 +17,13 @@ Gear::Gear()
 	init_angle = 0;
 	xform_valid = false;
 
+	supergear = 0;
+
 	mesh = 0;
+
+	color = Vec3(0.6, 0.6, 0.6);
+	roughness = 1.0;
+	metallic = false;
 }
 
 Gear::~Gear()
@@ -24,12 +31,57 @@ Gear::~Gear()
 	delete mesh;
 }
 
+void Gear::attach(Gear *g)
+{
+	if(g->supergear) {
+		if(g->supergear == this) {
+			return;
+		}
+		g->supergear->detach(g);
+	}
+	g->supergear = this;
+	subgears.push_back(g);
+
+	// make co-axial
+	g->axis = axis;
+	g->pos.x = pos.x;
+	g->pos.y = pos.y;
+}
+
+bool Gear::detach(Gear *g)
+{
+	int nsubgears = (int)subgears.size();
+	for(int i=0; i<nsubgears; i++) {
+		if(subgears[i] == g) {
+			subgears.erase(subgears.begin() + i);
+			g->supergear = 0;
+			return true;
+		}
+	}
+	return false;
+}
+
+Gear *Gear::get_super() const
+{
+	return supergear;
+}
+
+void Gear::set_angular_offset(float offs)
+{
+	init_angle = offs;
+	xform_valid = false;
+}
+
+float Gear::get_angular_offset() const
+{
+	return init_angle;
+}
+
 void Gear::set_teeth(int nt, float tooth_pitch)
 {
 	float circ = tooth_pitch * nt;
 	radius = circ / (2.0 * M_PI);
 	nteeth = nt;
-	init_angle = get_angular_pitch() * 3.0 / 8.0;
 }
 
 void Gear::set_axis(const Vec3 &axis)
@@ -38,10 +90,26 @@ void Gear::set_axis(const Vec3 &axis)
 	xform_valid = false;
 }
 
+const Vec3 &Gear::get_axis() const
+{
+	return axis;
+}
+
 void Gear::set_position(const Vec3 &pos)
 {
-	this->pos = pos;
+	if(!supergear) {
+		this->pos = pos;
+	} else {
+		this->pos = supergear->pos;
+		this->pos.z = pos.z;
+	}
 	xform_valid = false;
+
+	for(int i=0; i<(int)subgears.size(); i++) {
+		Vec3 subpos = this->pos;
+		subpos.z = subgears[i]->pos.z;
+		subgears[i]->set_position(subpos);
+	}
 }
 
 const Vec3 &Gear::get_position() const
@@ -51,7 +119,8 @@ const Vec3 &Gear::get_position() const
 
 Vec3 Gear::get_global_position() const
 {
-	return pos;	// TODO
+	const Mat4 &m = get_matrix();
+	return m * Vec3(0, 0, 0);
 }
 
 void Gear::set_angle(float angle)
@@ -85,7 +154,7 @@ const Mat4 &Gear::get_dir_matrix() const
 		calc_matrix();
 		xform_valid = true;
 	}
-	return xform;
+	return dir_xform;
 }
 
 float Gear::get_angular_pitch() const
@@ -100,9 +169,11 @@ void Gear::draw() const
 			abort();
 		}
 	}
-	calc_matrix();
+	if(!xform_valid) {
+		calc_matrix();
+	}
 
-	glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT);
+	glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT | GL_LIGHTING_BIT);
 
 	glPushMatrix();
 	glMultMatrixf(xform[0]);
@@ -112,6 +183,15 @@ void Gear::draw() const
 		glEnable(GL_POLYGON_OFFSET_FILL);
 	}
 
+	Vec3 diffuse = metallic ? Vec3(0, 0, 0) : color;
+	float col[] = {diffuse.x, diffuse.y, diffuse.z, 1.0};
+	glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, col);
+
+	Vec3 specular = (metallic ? color : Vec3(1, 1, 1)) * (1.0 - roughness);
+	float scol[] = {specular.x, specular.y, specular.z, 1.0};
+	glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, scol);
+	glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, 1.0 + (1.0 - roughness) * 60.0);
+
 	mesh->draw();
 
 	glDisable(GL_LIGHTING);
@@ -121,12 +201,29 @@ void Gear::draw() const
 		mesh->draw_wire();
 	}
 
-	glLineWidth(2.0);
-	glBegin(GL_LINES);
-	glColor3f(0, 0, 1);
-	glVertex3f(0, 0, -10);
-	glVertex3f(0, 0, 10);
-	glEnd();
+	glPopMatrix();
+	glPopAttrib();
+}
+
+void Gear::draw_wire(float wire_width) const
+{
+	if(!mesh) {
+		if(!((Gear*)this)->gen_mesh()) {
+			abort();
+		}
+	}
+	if(!xform_valid) {
+		calc_matrix();
+	}
+
+	glPushAttrib(GL_ENABLE_BIT | GL_LINE_BIT);
+	glLineWidth(wire_width);
+	glDisable(GL_LIGHTING);
+
+	glPushMatrix();
+	glMultMatrixf(xform[0]);
+
+	mesh->draw_wire();
 
 	glPopMatrix();
 	glPopAttrib();
@@ -176,8 +273,11 @@ bool Gear::gen_mesh()
 	mesh->explode();
 	mesh->calc_face_normals();
 
+	float fix_tooth_up = get_angular_pitch() * 3.0 / 8.0;
+
 	Mat4 rot;
 	rot.rotation_x(M_PI / 2.0);
+	rot.rotate_z(fix_tooth_up);
 	mesh->apply_xform(rot, rot);
 
 	mesh->set_vis_vecsize(6.0);
@@ -198,4 +298,7 @@ void Gear::calc_matrix() const
 	xform = dir_xform;
 	xform.rotate_z(get_vis_rotation());
 	xform.translate(pos);
+
+	axel_xform = dir_xform;
+	axel_xform.translate(pos);
 }